videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including Coros Unidos - Un Milagro hay para ti 2° voz mandolina, Coros Unidos - Siempre estuviste ahí - 2da. Voz VIOLIN, Coros Unidos - Tu tienes la Llave 1° voz mandolina